Comparison of Flexural Strength and Surface Roughness of two Different Flexible and Heat Cure Denture Base Material: An in Vitro Study.

AIM: To Compare and Evaluate the Flexural Strength and Surface Roughness of Lucitone-FRS, Valplast (Flexible Denture Base Materials) and Trevalon (Heat Cure Denture Base Material). MATERIALS AND METHODS: Three stainless steel master dies of dimension 65 × 20 × 3 mm were fabricated and were invested in standard metal denture flask. A total of 60 specimens were fabricated with 20 specimens of each type of denture base material. Fabrication of a Heat Cure Acrylic Denture Base Resin Specimen was Done Followed by Fabrication of Flexible Denture Base Resins Specimen. In the same manner, samples were fabricated for Lucitone-FRS, and Valplast. These specimens were further divided into two subsets; containing 10 specimens each from each group. In one subset, Flexural Strength was Measured while in the other subset, Surface Roughness was measured. The Surface Roughness values were measured using a surface testing machine Mitutoyo-SJ-Series 201 (Japan). The flexural strength of specimens was measured using a 3-point bending test device on universal testing machine. All the results were compiled and Analyzed by SPSS software. RESULTS: Flexural strength was found maximum in the VALPLAST and minimum in LUCITONE. Surface Roughness Test was done on total 10 samples of each material, i.e. Lucitone-FRS, Valplast and Trevalon. Results for Surface Roughness Test are Valplast has maximum Surface-Roughness followed by Trevalon and minimum in Lucitone-FRS on both polished and unpolished surface. CONCLUSION: Trevalon can be ideal in cross-arch stabilization cases and Valplast and Lucitone FRS can be successfully used in cases of small arch complete dentures and removable partial dentures. CLINICAL SIGNIFICANCE: The selection of the right denture base material is imperative as it largely affects the overall clinical outcomes and comforts. Results of the present study would aid the dentist in the selection of ideal denture base materials for specific cases like those requiring Cross Arch Stabilization, Small Arch Complete Dentures, and Removable Partial D entures.

Alveolar Osteonecrosis and Tooth Exfoliation in Herpes Zoster: A Rare Pediatric Case Report and Review of Literature.

Varicella-zoster virus (VZV) is an envelope, spherical, 150-200 nm in diameter virus, with the single, linear, double-stranded DNA molecule, 125,000 nt long. It belongs to the genus Varicellovirus, family. How to cite this article: Singh G, Mehrotra A, Garg K, et al. Alveolar Osteonecrosis and Tooth Exfoliation in Herpes Zoster: A Rare Pediatric Case Report and Review of Literature. Int J Clin Pediatr Dent 2020;13(S-1):S106-S109.

Assessment of psychiatric co-morbidities in patient of bronchial asthma attending a tertiary medical centre (Multicentric study).

AIMS AND OBJECTIVES: Asthma is a chronic inflammatory condition, which is associated with increase in airway hyper responsiveness that leads to recurrent episodes of wheezing, breathlessness, chest tightness and coughing. Asthma is a very common respiratory illness, in which some of the disease related factors may increases the vulnerability to psychiatric disorders. This study was done to determine the prevalence of psychiatric co-morbidity in patients of bronchial asthma. METHODOLOGY: It is an observational study conducted in 110 follow-up patients of bronchial asthma attending respiratory medicine OPD at tertiary care centre in central India. Psychiatric co-morbidities are assessed by pre-designed short-structured questionnaire using Mini international neuropsychiatric interview. RESULT: Among 110 patients of bronchial asthma 28% had psychiatric co-morbidity mainly depressive episode (59%). A significant association is found between lower socioeconomic status (P = 0.01), duration of of active illness (more than 1 year) (P = 0.001), and age of patient above 60 years (P = 0.001) with psychiatric co-morbidity of asthma patient. CONCLUSION: Our study shows there is increased prevalence of psychiatric co-morbidities in patients of bronchial asthma, higher than the national average. The predominant psychiatric disorder seen is depressive disorder, so treatment of asthma should be a multidisciplinary approach including medical treatment of asthma and psychiatric evaluation to prevent psychiatric co-morbidity or its early management. This will greatly reduce the morbidity, visits to hospital, expenditure on treatment and thereby having better outcomes in our patients of asthma.

Effectiveness of single use over multiple use toothbrushes on negative oral microflora of plaque.

CONTEXT: Role of toothbrush in decreasing oral microflora. AIMS: To evaluate the effectiveness and compare the negative oral microbial flora of dental plaque after the use of a self-contaminated multiple use toothbrush and that of a single-use toothbrush. SETTINGS AND DESIGN: Sixty healthy individuals without any systemic conditions. METHODS AND MATERIALS: The study conducted with 60 participants who were free from any systemic or oral disease and without any adverse habits. In these participants, plaque samples were collected after 1 month use of a self-contaminated multiple use toothbrush. Each participant was given a set of 30 new toothbrushes and a toothpaste tube and instructed to use one toothbrush everyday and discard it after use. The plaque samples were collected on seven days interval and cultured on Mitis Salivarius agar. The colonies were identified and their count was recorded. STATISTICAL ANALYSIS USED: Student t test was applied. RESULTS: Streptococcus mutans, S. sanguis, S. milleri, and Candida were identified from the samples. A highly marked decrease in their numbers was found after the use of a single-use toothbrush over multiple use toothbrushes. CONCLUSIONS: As a self-contaminated multiple use toothbrushes can aid microorganisms to grow rapidly into the oral cavity, it may be preferable to change the toothbrush as frequently as possible.